Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Covington you can estimate when it's a good idea to plant dahlia by checking out the USDA zone info.

Planting Calendar for Dahlia

Frost tolerance for dahlia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since dahlia require warm weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant dahlia in Covington is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant dahlia and expect a good harvest is probably August. If you wait any later than that and your dahlia may not have a chance to really do well. If you are starting your dahlia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Covington. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Covington may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Covington there is a last frost after March 15 so just be sure to be ready to protect your dahlia if you have one of those late frosts.

USDA Zone Info for Covington

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Covington

You may be interested in your other planting guides for Covington.